TapHome

Orno OR-WE-517

Modbus RTU
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Last updated: 03. 2026
Orno OR-WE-517

The Orno OR-WE-517 is a DIN-rail mounted 3-phase multitariff energy meter that communicates via Modbus RTU over RS-485. It is a direct-connect meter rated up to 80 A per phase, MID certified (Directive 2014/32/EU), and occupies 4.3 modules on a TH-35 rail. The TapHome template provides 11 electricity meter devices covering per-phase current, per-phase energy, total 3-phase energy, and 4-tariff energy counters, along with service attributes for voltage, reactive/apparent power, power factor, and bidirectional (forward/reverse) energy breakdown.

All measurement registers use IEEE 754 Float32 encoding (2 Modbus words per value), read via function code 03 (holding registers). The template also provides service actions for setting the meter’s real-time clock, configuring tariff schedules, and adjusting the Modbus slave ID.

Hardware connection

RS-485 wiring

The OR-WE-517 has a built-in RS-485 interface for Modbus RTU communication. Connect the meter to the TapHome Core RS-485 bus using a twin-core shielded communication cable:

  • A terminal on the meter to A+/D+ on TapHome RS-485
  • B terminal on the meter to B-/D- on TapHome RS-485

Use a daisy-chain wiring topology. Star or stub topologies cause signal reflections and communication errors. The connection between the converter and the meter should be carried out using twin-core communication cable adapted to the RS-485 standard.

A standard USB-RS485 converter can also be used for initial configuration and testing. The converter is not included with the meter.

Configuration

Communication parameters

The default Modbus settings match the TapHome template out of the box:

ParameterDefaultRange
Baud rate9600 bps1200, 2400, 4800, 9600
Data bits8Fixed
ParityEvenFixed
Stop bits1Fixed
Slave ID11–255

The communication frame uses an 11-bit format: 1 start bit, 8 data bits, 1 even parity bit, and 1 stop bit with CRC check.

Slave ID

When connecting multiple meters on the same RS-485 bus, each meter must have a unique Slave ID. The default Slave ID is 1 (configurable from 1 to 255 via holding register H:2). After importing the TapHome template, adjust the Slave ID in the module connection settings to match the physical meter. The template also provides a Slave ID service action to change the address remotely via Modbus.

The current Slave ID and baud rate are visible on the meter’s LCD display (pages 42 and 43 respectively).

Device capabilities

The template creates 11 ModbusElectricityMeter and ModbusVariable devices organized into three groups: per-phase current sensors, per-phase energy meters, and tariff-based energy counters. A total 3-phase energy device aggregates all phases with additional system-wide attributes.

Per-phase current monitoring

Three devices provide real-time current measurement for each phase:

  • L1 Current — phase 1 current (H:22, A) with L1 voltage as a service attribute (H:14, V)
  • L2 Current — phase 2 current (H:24, A) with L2 voltage (H:16, V)
  • L3 Current — phase 3 current (H:26, A) with L3 voltage (H:18, V)
Per-phase energy metering

Three devices track active energy consumption and power demand per phase with a comprehensive set of service attributes:

  • Phase L1 — total active energy (H:258, kWh) and active power (H:30, kW). Service attributes include voltage, current, reactive power (kVAr), apparent power (kVA), power factor, and bidirectional energy counters (forward/reverse active and reactive energy).
  • Phase L2 — total active energy (H:260, kWh) and active power (H:32, kW). Same per-phase service attributes as L1.
  • Phase L3 — total active energy (H:262, kWh) and active power (H:34, kW). Same per-phase service attributes as L1.
Total 3-phase energy

One device provides the system-wide totals:

  • Total Energy (3-Phase) — total active energy (H:256, kWh) and total active power demand (H:28, kW). Service attributes include grid frequency (Hz), total reactive power (kVAr), total apparent power (kVA), total power factor, and bidirectional energy counters (forward/reverse active and reactive energy).
Tariff energy counters

Four devices track cumulative energy per tariff zone (T1–T4):

  • Tariff T1 through Tariff T4 — each reports total active energy (kWh) with service attributes for forward/reverse active energy and forward/reverse/total reactive energy. Tariff meters only track cumulative energy, not instantaneous power demand.

The meter supports up to 8 time intervals per day (Monday through Sunday individually) for assigning tariff zones T1–T4. Tariff schedules are configurable via the Set Tariffs service action, which allows programming intervals for a specific day or all days at once.

The 4-tariff capability is the key differentiator of the OR-WE-517 compared to the OR-WE-516 (which supports RS-485 but has no tariff scheduling). The OR-WE-513 has neither RS-485 nor tariff support.

Service actions

The template provides three service actions for remote configuration:

  • Date/Time — set the meter’s internal real-time clock (year, month, day, hour, minutes, seconds, and day of week) via registers H:60–H:65
  • Set Tariffs — configure up to 8 daily tariff intervals (T1–T4) for a selected day or all days at once, written to tariff schedule registers starting at H:768
  • LCD Cycle time — set the LCD display auto-scroll interval (1–120 seconds)
Additional capabilities

The OR-WE-517 also exposes registers for total reactive energy per phase (L1/L2/L3), serial number, firmware and hardware version, a combined configuration code, and a holiday/weekend tariff assignment register. These can be added in a future template update.

Troubleshooting

No communication
  1. Verify the RS-485 A/B terminal connections – swap A and B if communication fails, as labeling conventions vary between manufacturers
  2. Confirm the baud rate in TapHome matches the meter setting (default 9600 bps, visible on LCD page 43)
  3. Verify the Slave ID matches (default 1, visible on LCD page 42 as “Id 255” format where 255 is the current address)
  4. Check that the parity setting is Even (8E1) – this meter uses even parity by default, unlike some meters that default to no parity (8N1)
Incorrect readings
  1. Ensure the meter is wired as a 3-phase 4-wire system with all three phase conductors and neutral connected through the meter terminals
  2. For bidirectional metering (forward/reverse energy), verify the CT direction or conductor direction matches the energy flow – reversed wiring causes forward energy to register as reverse
Communication via Ethernet converter

The OR-WE-517 can also be accessed via an RS-485 to Ethernet converter (e.g., Waveshare RS485 to ETH). When using such a converter, the protocol type must be set to RTU over TCP (not standard Modbus TCP). Standard TCP framing does not work with this meter.

Available devices

Orno OR-WE-517 Module
Service Attributes
Slave ID
Baud rate
LCD cycle time
CT RateCurrent transformer ratio — only applicable for CT-type meters, not for direct-connect installations
S0 output rate
TimeCurrent date and time from the meter's internal real-time clock
Tariffs (Mo)
Tariffs (Tu)
Tariffs (We)
Tariffs (Th)
Tariffs (Fr)
Tariffs (Sa)
Tariffs (Su)
Service Actions
Date/TimeSet the meter's internal real-time clock — date, time, and day of week for tariff schedule operation
Set TariffsConfigure up to 8 daily tariff intervals (T1–T4) for a selected day or all days at once
Slave IDChange the Modbus slave address (1–255) for multi-meter RS-485 bus configurations
LCD Cycle timeSet the LCD display auto-scroll interval in seconds

OR-WE-517

Service Attributes
${device_SlaveId}
modbusr(H, 0x02, Uint16)
${baud_rate} [bps]
modbusr(H, 0x03, Uint16)
LCD ${cycle_time} [s]
modbusr(H, 0x0d, Uint16)
CT Rate
modbusr(H, 0x08, Uint16)
S0 output rate [imp/kWh]
modbusr(H, 0x09, Float)
${time}
var ret := modbusr(H, 0x3c, Uint32);
var ret1 := modbusr(H, 0x3e, Uint16);
var xx := modbusr(H, 0x40, Uint16);
tostring(getbyte(ret,1), "X2") 
+ ":" + tostring(getbyte(ret,2), "X2")
+ ":" + tostring(getbyte(ret,3), "X2")
+ " " + switch(getbyte(ret,0), 
1, "(Mo)",
2, "(Tu)",
3, "(We)",
4, "(Th)",
5, "(Fr)",
6, "(Sa)",
7, "(Su)", "Err")
+ " " + tostring(getbyte(ret1,1), "X2")
+ "." + tostring(getbyte(ret1,0), "X2")
+ ".20" + modbusr(H, 0x3f, LittleEndianUint16);
${tariff}s (Mo)
var wd1 := modbusr(H, 0x300, Uint32);
var wd2 := modbusr(H, 0x300 +2, Uint32);
var wd3 := modbusr(H, 0x300 +4, Uint32);
var wd4 := modbusr(H, 0x300 +6, Uint32);
var wd5 := modbusr(H, 0x300 +8, Uint32);
var wd6 := modbusr(H, 0x300 +10, Uint32);

var out := "";
if ( getbyte(wd1,1) != 0, out := out +
    "[" + tostring(getbyte(wd1,3), "X2") + ":" + tostring(getbyte(wd1,2), "X2") + "-T" + tostring(getbyte(wd1,1), "X2") + "]" );
if ( getbyte(wd2,2) != 0, out := out +
    "[" + tostring(getbyte(wd1,0), "X2") + ":" + tostring(getbyte(wd2,3), "X2") + "-T" + tostring(getbyte(wd2,2), "X2") + "]" );
if ( getbyte(wd3,3) != 0, out := out +
    "[" + tostring(getbyte(wd2,1), "X2") + ":" + tostring(getbyte(wd2,0), "X2") + "-T" + tostring(getbyte(wd3,3), "X2") + "]" );
if ( getbyte(wd3,0) != 0, out := out +
    "[" + tostring(getbyte(wd3,2), "X2") + ":" + tostring(getbyte(wd3,1), "X2") + "-T" + tostring(getbyte(wd3,0), "X2") + "]" );
if ( getbyte(wd4,1) != 0, out := out +
    "[" + tostring(getbyte(wd4,3), "X2") + ":" + tostring(getbyte(wd4,2), "X2") + "-T" + tostring(getbyte(wd4,1), "X2") + "]" );
if ( getbyte(wd5,2) != 0, out := out +
    "[" + tostring(getbyte(wd4,0), "X2") + ":" + tostring(getbyte(wd5,3), "X2") + "-T" + tostring(getbyte(wd5,2), "X2") + "]" );
if ( getbyte(wd6,3) != 0, out := out +
    "[" + tostring(getbyte(wd5,1), "X2") + ":" + tostring(getbyte(wd5,0), "X2") + "-T" + tostring(getbyte(wd6,3), "X2") + "]" );
if ( getbyte(wd6,0) != 0, out := out +
    "[" + tostring(getbyte(wd6,2), "X2") + ":" + tostring(getbyte(wd6,1), "X2") + "-T" + tostring(getbyte(wd6,0), "X2") + "]" );

return(out)
${tariff}s (Tu)
var wd1 := modbusr(H, 0x30c, Uint32);
var wd2 := modbusr(H, 0x30c +2, Uint32);
var wd3 := modbusr(H, 0x30c +4, Uint32);
var wd4 := modbusr(H, 0x30c +6, Uint32);
var wd5 := modbusr(H, 0x30c +8, Uint32);
var wd6 := modbusr(H, 0x30c +10, Uint32);

var out := "";
if ( getbyte(wd1,1) != 0, out := out +
    "[" + tostring(getbyte(wd1,3), "X2") + ":" + tostring(getbyte(wd1,2), "X2") + "-T" + tostring(getbyte(wd1,1), "X2") + "]" );
if ( getbyte(wd2,2) != 0, out := out +
    "[" + tostring(getbyte(wd1,0), "X2") + ":" + tostring(getbyte(wd2,3), "X2") + "-T" + tostring(getbyte(wd2,2), "X2") + "]" );
if ( getbyte(wd3,3) != 0, out := out +
    "[" + tostring(getbyte(wd2,1), "X2") + ":" + tostring(getbyte(wd2,0), "X2") + "-T" + tostring(getbyte(wd3,3), "X2") + "]" );
if ( getbyte(wd3,0) != 0, out := out +
    "[" + tostring(getbyte(wd3,2), "X2") + ":" + tostring(getbyte(wd3,1), "X2") + "-T" + tostring(getbyte(wd3,0), "X2") + "]" );
if ( getbyte(wd4,1) != 0, out := out +
    "[" + tostring(getbyte(wd4,3), "X2") + ":" + tostring(getbyte(wd4,2), "X2") + "-T" + tostring(getbyte(wd4,1), "X2") + "]" );
if ( getbyte(wd5,2) != 0, out := out +
    "[" + tostring(getbyte(wd4,0), "X2") + ":" + tostring(getbyte(wd5,3), "X2") + "-T" + tostring(getbyte(wd5,2), "X2") + "]" );
if ( getbyte(wd6,3) != 0, out := out +
    "[" + tostring(getbyte(wd5,1), "X2") + ":" + tostring(getbyte(wd5,0), "X2") + "-T" + tostring(getbyte(wd6,3), "X2") + "]" );
if ( getbyte(wd6,0) != 0, out := out +
    "[" + tostring(getbyte(wd6,2), "X2") + ":" + tostring(getbyte(wd6,1), "X2") + "-T" + tostring(getbyte(wd6,0), "X2") + "]" );

return(out)
${tariff}s (We)
var wd1 := modbusr(H, 0x318, Uint32);
var wd2 := modbusr(H, 0x318 +2, Uint32);
var wd3 := modbusr(H, 0x318 +4, Uint32);
var wd4 := modbusr(H, 0x318 +6, Uint32);
var wd5 := modbusr(H, 0x318 +8, Uint32);
var wd6 := modbusr(H, 0x318 +10, Uint32);

var out := "";
if ( getbyte(wd1,1) != 0, out := out +
    "[" + tostring(getbyte(wd1,3), "X2") + ":" + tostring(getbyte(wd1,2), "X2") + "-T" + tostring(getbyte(wd1,1), "X2") + "]" );
if ( getbyte(wd2,2) != 0, out := out +
    "[" + tostring(getbyte(wd1,0), "X2") + ":" + tostring(getbyte(wd2,3), "X2") + "-T" + tostring(getbyte(wd2,2), "X2") + "]" );
if ( getbyte(wd3,3) != 0, out := out +
    "[" + tostring(getbyte(wd2,1), "X2") + ":" + tostring(getbyte(wd2,0), "X2") + "-T" + tostring(getbyte(wd3,3), "X2") + "]" );
if ( getbyte(wd3,0) != 0, out := out +
    "[" + tostring(getbyte(wd3,2), "X2") + ":" + tostring(getbyte(wd3,1), "X2") + "-T" + tostring(getbyte(wd3,0), "X2") + "]" );
if ( getbyte(wd4,1) != 0, out := out +
    "[" + tostring(getbyte(wd4,3), "X2") + ":" + tostring(getbyte(wd4,2), "X2") + "-T" + tostring(getbyte(wd4,1), "X2") + "]" );
if ( getbyte(wd5,2) != 0, out := out +
    "[" + tostring(getbyte(wd4,0), "X2") + ":" + tostring(getbyte(wd5,3), "X2") + "-T" + tostring(getbyte(wd5,2), "X2") + "]" );
if ( getbyte(wd6,3) != 0, out := out +
    "[" + tostring(getbyte(wd5,1), "X2") + ":" + tostring(getbyte(wd5,0), "X2") + "-T" + tostring(getbyte(wd6,3), "X2") + "]" );
if ( getbyte(wd6,0) != 0, out := out +
    "[" + tostring(getbyte(wd6,2), "X2") + ":" + tostring(getbyte(wd6,1), "X2") + "-T" + tostring(getbyte(wd6,0), "X2") + "]" );

return(out)
${tariff}s (Th)
var wd1 := modbusr(H, 0x324, Uint32);
var wd2 := modbusr(H, 0x324 +2, Uint32);
var wd3 := modbusr(H, 0x324 +4, Uint32);
var wd4 := modbusr(H, 0x324 +6, Uint32);
var wd5 := modbusr(H, 0x324 +8, Uint32);
var wd6 := modbusr(H, 0x324 +10, Uint32);

var out := "";
if ( getbyte(wd1,1) != 0, out := out +
    "[" + tostring(getbyte(wd1,3), "X2") + ":" + tostring(getbyte(wd1,2), "X2") + "-T" + tostring(getbyte(wd1,1), "X2") + "]" );
if ( getbyte(wd2,2) != 0, out := out +
    "[" + tostring(getbyte(wd1,0), "X2") + ":" + tostring(getbyte(wd2,3), "X2") + "-T" + tostring(getbyte(wd2,2), "X2") + "]" );
if ( getbyte(wd3,3) != 0, out := out +
    "[" + tostring(getbyte(wd2,1), "X2") + ":" + tostring(getbyte(wd2,0), "X2") + "-T" + tostring(getbyte(wd3,3), "X2") + "]" );
if ( getbyte(wd3,0) != 0, out := out +
    "[" + tostring(getbyte(wd3,2), "X2") + ":" + tostring(getbyte(wd3,1), "X2") + "-T" + tostring(getbyte(wd3,0), "X2") + "]" );
if ( getbyte(wd4,1) != 0, out := out +
    "[" + tostring(getbyte(wd4,3), "X2") + ":" + tostring(getbyte(wd4,2), "X2") + "-T" + tostring(getbyte(wd4,1), "X2") + "]" );
if ( getbyte(wd5,2) != 0, out := out +
    "[" + tostring(getbyte(wd4,0), "X2") + ":" + tostring(getbyte(wd5,3), "X2") + "-T" + tostring(getbyte(wd5,2), "X2") + "]" );
if ( getbyte(wd6,3) != 0, out := out +
    "[" + tostring(getbyte(wd5,1), "X2") + ":" + tostring(getbyte(wd5,0), "X2") + "-T" + tostring(getbyte(wd6,3), "X2") + "]" );
if ( getbyte(wd6,0) != 0, out := out +
    "[" + tostring(getbyte(wd6,2), "X2") + ":" + tostring(getbyte(wd6,1), "X2") + "-T" + tostring(getbyte(wd6,0), "X2") + "]" );

return(out)
${tariff}s (Fr)
var wd1 := modbusr(H, 0x330, Uint32);
var wd2 := modbusr(H, 0x330 +2, Uint32);
var wd3 := modbusr(H, 0x330 +4, Uint32);
var wd4 := modbusr(H, 0x330 +6, Uint32);
var wd5 := modbusr(H, 0x330 +8, Uint32);
var wd6 := modbusr(H, 0x330 +10, Uint32);

var out := "";
if ( getbyte(wd1,1) != 0, out := out +
    "[" + tostring(getbyte(wd1,3), "X2") + ":" + tostring(getbyte(wd1,2), "X2") + "-T" + tostring(getbyte(wd1,1), "X2") + "]" );
if ( getbyte(wd2,2) != 0, out := out +
    "[" + tostring(getbyte(wd1,0), "X2") + ":" + tostring(getbyte(wd2,3), "X2") + "-T" + tostring(getbyte(wd2,2), "X2") + "]" );
if ( getbyte(wd3,3) != 0, out := out +
    "[" + tostring(getbyte(wd2,1), "X2") + ":" + tostring(getbyte(wd2,0), "X2") + "-T" + tostring(getbyte(wd3,3), "X2") + "]" );
if ( getbyte(wd3,0) != 0, out := out +
    "[" + tostring(getbyte(wd3,2), "X2") + ":" + tostring(getbyte(wd3,1), "X2") + "-T" + tostring(getbyte(wd3,0), "X2") + "]" );
if ( getbyte(wd4,1) != 0, out := out +
    "[" + tostring(getbyte(wd4,3), "X2") + ":" + tostring(getbyte(wd4,2), "X2") + "-T" + tostring(getbyte(wd4,1), "X2") + "]" );
if ( getbyte(wd5,2) != 0, out := out +
    "[" + tostring(getbyte(wd4,0), "X2") + ":" + tostring(getbyte(wd5,3), "X2") + "-T" + tostring(getbyte(wd5,2), "X2") + "]" );
if ( getbyte(wd6,3) != 0, out := out +
    "[" + tostring(getbyte(wd5,1), "X2") + ":" + tostring(getbyte(wd5,0), "X2") + "-T" + tostring(getbyte(wd6,3), "X2") + "]" );
if ( getbyte(wd6,0) != 0, out := out +
    "[" + tostring(getbyte(wd6,2), "X2") + ":" + tostring(getbyte(wd6,1), "X2") + "-T" + tostring(getbyte(wd6,0), "X2") + "]" );

return(out)
${tariff}s (Sa)
var wd1 := modbusr(H, 0x33c, Uint32);
var wd2 := modbusr(H, 0x33c +2, Uint32);
var wd3 := modbusr(H, 0x33c +4, Uint32);
var wd4 := modbusr(H, 0x33c +6, Uint32);
var wd5 := modbusr(H, 0x33c +8, Uint32);
var wd6 := modbusr(H, 0x33c +10, Uint32);

var out := "";
if ( getbyte(wd1,1) != 0, out := out +
    "[" + tostring(getbyte(wd1,3), "X2") + ":" + tostring(getbyte(wd1,2), "X2") + "-T" + tostring(getbyte(wd1,1), "X2") + "]" );
if ( getbyte(wd2,2) != 0, out := out +
    "[" + tostring(getbyte(wd1,0), "X2") + ":" + tostring(getbyte(wd2,3), "X2") + "-T" + tostring(getbyte(wd2,2), "X2") + "]" );
if ( getbyte(wd3,3) != 0, out := out +
    "[" + tostring(getbyte(wd2,1), "X2") + ":" + tostring(getbyte(wd2,0), "X2") + "-T" + tostring(getbyte(wd3,3), "X2") + "]" );
if ( getbyte(wd3,0) != 0, out := out +
    "[" + tostring(getbyte(wd3,2), "X2") + ":" + tostring(getbyte(wd3,1), "X2") + "-T" + tostring(getbyte(wd3,0), "X2") + "]" );
if ( getbyte(wd4,1) != 0, out := out +
    "[" + tostring(getbyte(wd4,3), "X2") + ":" + tostring(getbyte(wd4,2), "X2") + "-T" + tostring(getbyte(wd4,1), "X2") + "]" );
if ( getbyte(wd5,2) != 0, out := out +
    "[" + tostring(getbyte(wd4,0), "X2") + ":" + tostring(getbyte(wd5,3), "X2") + "-T" + tostring(getbyte(wd5,2), "X2") + "]" );
if ( getbyte(wd6,3) != 0, out := out +
    "[" + tostring(getbyte(wd5,1), "X2") + ":" + tostring(getbyte(wd5,0), "X2") + "-T" + tostring(getbyte(wd6,3), "X2") + "]" );
if ( getbyte(wd6,0) != 0, out := out +
    "[" + tostring(getbyte(wd6,2), "X2") + ":" + tostring(getbyte(wd6,1), "X2") + "-T" + tostring(getbyte(wd6,0), "X2") + "]" );

return(out)
${tariff}s (Su)
var wd1 := modbusr(H, 0x348, Uint32);
var wd2 := modbusr(H, 0x348 +2, Uint32);
var wd3 := modbusr(H, 0x348 +4, Uint32);
var wd4 := modbusr(H, 0x348 +6, Uint32);
var wd5 := modbusr(H, 0x348 +8, Uint32);
var wd6 := modbusr(H, 0x348 +10, Uint32);

var out := "";
if ( getbyte(wd1,1) != 0, out := out +
    "[" + tostring(getbyte(wd1,3), "X2") + ":" + tostring(getbyte(wd1,2), "X2") + "-T" + tostring(getbyte(wd1,1), "X2") + "]" );
if ( getbyte(wd2,2) != 0, out := out +
    "[" + tostring(getbyte(wd1,0), "X2") + ":" + tostring(getbyte(wd2,3), "X2") + "-T" + tostring(getbyte(wd2,2), "X2") + "]" );
if ( getbyte(wd3,3) != 0, out := out +
    "[" + tostring(getbyte(wd2,1), "X2") + ":" + tostring(getbyte(wd2,0), "X2") + "-T" + tostring(getbyte(wd3,3), "X2") + "]" );
if ( getbyte(wd3,0) != 0, out := out +
    "[" + tostring(getbyte(wd3,2), "X2") + ":" + tostring(getbyte(wd3,1), "X2") + "-T" + tostring(getbyte(wd3,0), "X2") + "]" );
if ( getbyte(wd4,1) != 0, out := out +
    "[" + tostring(getbyte(wd4,3), "X2") + ":" + tostring(getbyte(wd4,2), "X2") + "-T" + tostring(getbyte(wd4,1), "X2") + "]" );
if ( getbyte(wd5,2) != 0, out := out +
    "[" + tostring(getbyte(wd4,0), "X2") + ":" + tostring(getbyte(wd5,3), "X2") + "-T" + tostring(getbyte(wd5,2), "X2") + "]" );
if ( getbyte(wd6,3) != 0, out := out +
    "[" + tostring(getbyte(wd5,1), "X2") + ":" + tostring(getbyte(wd5,0), "X2") + "-T" + tostring(getbyte(wd6,3), "X2") + "]" );
if ( getbyte(wd6,0) != 0, out := out +
    "[" + tostring(getbyte(wd6,2), "X2") + ":" + tostring(getbyte(wd6,1), "X2") + "-T" + tostring(getbyte(wd6,0), "X2") + "]" );

return(out)
Service Actions
Date/Time
Parameters: Year (22–99 YY), Month (1–12 MM), Day (1–31 DD), Hour (1–24 HH), Minutes (0–59 MI), Seconds (0–59 SS), Day of Week
var out1 := (tobcd(MI) << 8) + tobcd(SS);
var out2 := (tobcd(DW) << 8) + tobcd(HH);
var out3 := (tobcd(MM) << 8) + tobcd(DD);

modbusw(H, 0x3c, LittleEndianUint16, out1, out2, out3, YY);
${set_tarriffs}
Parameters: Interval 1 - ${hour} (0–23 HH1), Interval 1 - ${minutes} (0–59 MI1), Interval 1 - ${tariff} (0–4 T1), Interval 2 - Hour (0–23 HH2), Interval 2 - Minutes (0–59 MI2), Interval 2 - ${tariff} (0–4 T2), Interval 3 - Hour (0–23 HH3), Interval 3 - Minutes (0–59 MI3), Interval 3 - ${tariff} (0–4 T3), Interval 4 - Hour (0–23 HH4), Interval 4 - Minutes (0–59 MI4), Interval 4 - ${tariff} (0–4 T4), Interval 5 - Hour (0–23 HH5), Interval 5 - Minutes (0–59 MI5), Interval 5 - ${tariff} (0–4 T5), Interval 6 - Hour (0–23 HH6), Interval 6 - Minutes (0–59 MI6), Interval 6 - ${tariff} (0–4 T6), Interval 7 - Hour (0–23 HH7), Interval 7 - Minutes (0–59 MI7), Interval 7 - ${tariff} (0–4 T7), Interval 8 - Hour (0–23 HH8), Interval 8 - Minutes (0–59 MI8), Interval 8 - ${tariff} (0–4 T8), Day
var wd1 := (tobcd(HH1) << 24) + (tobcd(MI1) << 16) + (tobcd(T1) << 8) + tobcd(HH2);
var wd2 := (tobcd(MI2) << 24) + (tobcd(T2) << 16) + (tobcd(HH3) << 8) + tobcd(MI3);
var wd3 := (tobcd(T3) << 24) + (tobcd(HH4) << 16) + (tobcd(MI4) << 8) + tobcd(T4);
var wd4 := (tobcd(HH5) << 24) + (tobcd(MI5) << 16) + (tobcd(T5) << 8) + tobcd(HH6);
var wd5 := (tobcd(MI6) << 24) + (tobcd(T6) << 16) + (tobcd(HH7) << 8) + tobcd(MI7);
var wd6 := (tobcd(T7) << 24) + (tobcd(HH8) << 16) + (tobcd(MI8) << 8) + tobcd(T8);

if DoW = 0 or DoW = 1
    modbusw(H, 0x300, Uint32, wd1, wd2, wd3, wd4, wd5, wd6);
end
if DoW = 0 or DoW = 2
    modbusw(H, 0x30c, Uint32, wd1, wd2, wd3, wd4, wd5, wd6);
end
if DoW = 0 or DoW = 3
    modbusw(H, 0x318, Uint32, wd1, wd2, wd3, wd4, wd5, wd6);
end
if DoW = 0 or DoW = 4
    modbusw(H, 0x324, Uint32, wd1, wd2, wd3, wd4, wd5, wd6);
end
if DoW = 0 or DoW = 5
    modbusw(H, 0x330, Uint32, wd1, wd2, wd3, wd4, wd5, wd6);
end
if DoW = 0 or DoW = 6
    modbusw(H, 0x33c, Uint32, wd1, wd2, wd3, wd4, wd5, wd6);
end
if DoW = 0 or DoW = 7
    modbusw(H, 0x348, Uint32, wd1, wd2, wd3, wd4, wd5, wd6);
end
Slave ID
Parameters: Parameter1 (1–255 ID)
modbusw(H, 0x02, Uint16, ID)
LCD Cycle time
Parameters: Time [s] (1–120 t)
modbusw(H, 0x0d, Uint16, t)
L1 Current Variable Read-only
Register: H:22 Float Unit: A
Service Attributes
L1 Voltage

L1 Current

Read
MODBUSR(H, 22, Float)
Service Attributes
L1 ${electric_voltage} [V]
round(modbusr(H, 0x0e, Float)*10)/10
L2 Current Variable Read-only
Register: H:24 Float Unit: A
Service Attributes
L2 Voltage

L2 Current

Read
MODBUSR(H, 24, Float)
Service Attributes
L2 ${electric_voltage} [V]
round(modbusr(H, 0x10, Float)*10)/10
L3 Current Variable Read-only
Register: H:26 Float Unit: A
Service Attributes
L3 Voltage

L3 Current

Read
MODBUSR(H, 26, Float)
Service Attributes
L3 ${electric_voltage} [V]
round(modbusr(H, 0x12, Float)*10)/10
Phase L1 Electricity Meter Read-only

Phase 1 energy meter — total active energy and active power with voltage, current, reactive/apparent power, power factor, and bidirectional energy counters

Register: H:258 (readtotalconsumption), H:30 (readdemand) Float Unit: kWh / kW
Service Attributes
Voltage
Current
Reactive power
Apparent power
Power factor
Forward active energy
Reverse active energy
Forward reactive energy
Reverse reactive energy

Phase L1

Read total consumption
MODBUSR(H, 0x102, Float)
Read demand
MODBUSR(H, 0x1e, Float)
Service Attributes
${electric_voltage} [V]
tostring(modbusr(H, 0x0e,Float), "F2")
${electric_current} [A]
tostring(modbusr(H, 0x16,Float), "F2")
${reactive_power} [kVAr]
tostring(modbusr(H, 0x26,Float), "F2")
${apparent_power} [kVA]
tostring(modbusr(H, 0x2e,Float), "F2")
${power_factor}
tostring(modbusr(H, 0x36,Float), "F2")
${forward_active_energy} [kWh]
tostring(modbusr(H, 0x10a,Float), "F2")
${reverse_active_energy} [kWh]
tostring(modbusr(H, 0x112,Float), "F2")
${forward_reactive_energy} [kVArh]
tostring(modbusr(H, 0x122,Float), "F2")
${reverse_reactive_energy} [kVArh]
tostring(modbusr(H, 0x12a,Float), "F2")
Phase L2 Electricity Meter Read-only
Register: H:260 (readtotalconsumption), H:32 (readdemand) Float Unit: kWh / kW
Service Attributes
Voltage
Current
Reactive power
Apparent power
Power factor
Forward active energy
Reverse active energy
Forward reactive energy
Reverse reactive energy

Phase L2

Read total consumption
MODBUSR(H, 0x104, Float)
Read demand
MODBUSR(H, 0x20, Float)
Service Attributes
${electric_voltage} [V]
tostring(modbusr(H, 0x10,Float), "F2")
${electric_current} [A]
tostring(modbusr(H, 0x18,Float), "F2")
${reactive_power} [kVAr]
tostring(modbusr(H, 0x28,Float), "F2")
${apparent_power} [kVA]
tostring(modbusr(H, 0x30,Float), "F2")
${power_factor}
tostring(modbusr(H, 0x38,Float), "F2")
${forward_active_energy} [kWh]
tostring(modbusr(H, 0x10c,Float), "F2")
${reverse_active_energy} [kWh]
tostring(modbusr(H, 0x114,Float), "F2")
${forward_reactive_energy} [kVArh]
tostring(modbusr(H, 0x124,Float), "F2")
${reverse_reactive_energy} [kVArh]
tostring(modbusr(H, 0x12c,Float), "F2")
Phase L3 Electricity Meter Read-only
Register: H:262 (readtotalconsumption), H:34 (readdemand) Float Unit: kWh / kW
Service Attributes
Voltage
Current
Reactive power
Apparent power
Power factor
Forward active energy
Reverse active energy
Forward reactive energy
Reverse reactive energy

Phase L3

Read total consumption
MODBUSR(H, 0x106, Float)
Read demand
MODBUSR(H, 0x22, Float)
Service Attributes
${electric_voltage} [V]
tostring(modbusr(H, 0x12,Float), "F2")
${electric_current} [A]
tostring(modbusr(H, 0x1a,Float), "F2")
${reactive_power} [kVAr]
tostring(modbusr(H, 0x2a,Float), "F2")
${apparent_power} [kVA]
tostring(modbusr(H, 0x32,Float), "F2")
${power_factor}
tostring(modbusr(H, 0x3a,Float), "F2")
${forward_active_energy} [kWh]
tostring(modbusr(H, 0x10e,Float), "F2")
${reverse_active_energy} [kWh]
tostring(modbusr(H, 0x116,Float), "F2")
${forward_reactive_energy} [kVArh]
tostring(modbusr(H, 0x126,Float), "F2")
${reverse_reactive_energy} [kVArh]
tostring(modbusr(H, 0x12e,Float), "F2")
Tariff T1 Electricity Meter Read-only

Tariff 1 cumulative energy counter — total active energy with forward/reverse active and reactive energy breakdown

Register: H:304 (readtotalconsumption) Float Unit: kWh
Service Attributes
Forward active energy
Reverse active energy
Total reactive energy
Forward reactive energy
Reverse reactive energy

Tariff T1

Read total consumption
MODBUSR(H, 0x130, Float)
Service Attributes
${forward_active_energy} [kWh]
tostring(modbusr(H, 0x132,Float), "F2")
${reverse_active_energy} [kWh]
tostring(modbusr(H, 0x134,Float), "F2")
${total_reactive_energy} [kVArh]
tostring(modbusr(H, 0x136,Float), "F2")
${forward_reactive_energy} [kVArh]
tostring(modbusr(H, 0x138,Float), "F2")
${reverse_reactive_energy} [kVArh]
tostring(modbusr(H, 0x13a,Float), "F2")
Tariff T2 Electricity Meter Read-only
Register: H:316 (readtotalconsumption) Float Unit: kWh
Service Attributes
Forward active energy
Reverse active energy
Total reactive energy
Forward reactive energy
Reverse reactive energy

Tariff T2

Read total consumption
MODBUSR(H, 0x13c, Float)
Service Attributes
${forward_active_energy} [kWh]
tostring(modbusr(H, 0x13e,Float), "F2")
${reverse_active_energy} [kWh]
tostring(modbusr(H, 0x140,Float), "F2")
${total_reactive_energy} [kVArh]
tostring(modbusr(H, 0x142,Float), "F2")
${forward_reactive_energy} [kVArh]
tostring(modbusr(H, 0x144,Float), "F2")
${reverse_reactive_energy} [kVArh]
tostring(modbusr(H, 0x146,Float), "F2")
Tariff T3 Electricity Meter Read-only
Register: H:328 (readtotalconsumption) Float Unit: kWh
Service Attributes
Forward active energy
Reverse active energy
Total reactive energy
Forward reactive energy
Reverse reactive energy

Tariff T3

Read total consumption
MODBUSR(H, 0x148, Float)
Service Attributes
${forward_active_energy} [kWh]
tostring(modbusr(H, 0x14a,Float), "F2")
${reverse_active_energy} [kWh]
tostring(modbusr(H, 0x14c,Float), "F2")
${total_reactive_energy} [kVArh]
tostring(modbusr(H, 0x14e,Float), "F2")
${forward_reactive_energy} [kVArh]
tostring(modbusr(H, 0x150,Float), "F2")
${reverse_reactive_energy} [kVArh]
tostring(modbusr(H, 0x152,Float), "F2")
Tariff T4 Electricity Meter Read-only
Register: H:340 (readtotalconsumption) Float Unit: kWh
Service Attributes
Forward active energy
Reverse active energy
Total reactive energy
Forward reactive energy
Reverse reactive energy

Tariff T4

Read total consumption
MODBUSR(H, 0x154, Float)
Service Attributes
${forward_active_energy} [kWh]
tostring(modbusr(H, 0x156,Float), "F2")
${reverse_active_energy} [kWh]
tostring(modbusr(H, 0x158,Float), "F2")
${total_reactive_energy} [kVArh]
tostring(modbusr(H, 0x15a,Float), "F2")
${forward_reactive_energy} [kVArh]
tostring(modbusr(H, 0x15c,Float), "F2")
${reverse_reactive_energy} [kVArh]
tostring(modbusr(H, 0x15e,Float), "F2")
Total Energy (3-Phase) Electricity Meter Read-only

3-phase system total — active energy and power demand with grid frequency, reactive/apparent power, power factor, and bidirectional energy counters

Register: H:256 (readtotalconsumption), H:28 (readdemand) Float Unit: kWh / kW
Service Attributes
Grid frequency
Total reactive power
Total apparent power
Total power factor
Forward active energy
Reverse active energy
Forward reactive energy
Reverse reactive energy

Total Energy (3-Phase)

Read total consumption
MODBUSR(H, 0x100, Float)
Read demand
MODBUSR(H, 0x1c, Float)
Service Attributes
${grid_frequency} [Hz]
tostring(modbusr(H, 0x14,Float), "F2")
${reactive_power} [kVAr]
tostring(modbusr(H, 0x24,Float), "F2")
${apparent_power} [kVA]
tostring(modbusr(H, 0x2c,Float), "F2")
${power_factor}
tostring(modbusr(H, 0x34,Float), "F2")
${forward_active_energy} [kWh]
tostring(modbusr(H, 0x108,Float), "F2")
${reverse_active_energy} [kWh]
tostring(modbusr(H, 0x110,Float), "F2")
${forward_reactive_energy} [kVArh]
tostring(modbusr(H, 0x120,Float), "F2")
${reverse_reactive_energy} [kVArh]
tostring(modbusr(H, 0x128,Float), "F2")
Connection: Modbus RTU • 9600 baud• 8E1 • Slave ID: $[SlaveId]
Possible improvements (9)
  • H:280 Total Reactive Energy — Aggregate reactive energy counter (sum of all phases)
  • H:282 L1 Reactive Energy — Per-phase reactive energy — only forward/reverse reactive exposed, not total per-phase
  • H:284 L2 Reactive Energy — Per-phase reactive energy
  • H:286 L3 Reactive Energy — Per-phase reactive energy
  • H:0 Serial Number — 4-byte serial number, read-only
  • H:4 Software Version — Firmware version as float
  • H:6 Hardware Version — Hardware version as float
  • H:11 Combined Code — Configuration code, R/W
  • H:12 HOLIDAY-WEEKEND T — Holiday/weekend tariff assignment

Sources